{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386430",
    "entityType": "User",
    "nonce": "0x31dab6deccfcf7deb37fb2661ed10d63e1d95afb0479375bb5b781343e5b41a4",
    "signature": "0x32f03ecbdcbce6090ef05b259e5043a839c0b52a021afb588ecaf0c9405f71c3029f18af6c04cb5af330b910deffdec34702b1f8fa4e8e2ff6d5dfe8d596849d1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}